A new tera-hertz THz imaging device for multiphase flow metering

Imran Saied, Mahmoud Meribout, Esra Al Hosani, Mohit Kalra

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In this paper, a new FPGA-based THz imaging device for real-time multiphase flow metering is proposed. The overall system consists of a THz source and a THz camera within which a stainless steel-flanged Teflonmade cylindrical probe is provided to carry the multiphase flow. Hence, the system acts like an X-raybased device but has the advantage of having non-ionizing waves which makes it a safer alternative. In addition, the system provides a much informative indication about the flow by capturing its two-dimensional image in real-time and without the requirement of performing the time-consuming and errorless-free image tomography techniques. The THz camera consists of 64 × 64 pixels which represent the actual accumulated dielectric of objects value within a projected line in the space. The camera provides the pixel values via a digital video bus (USB port) to an FPGA board for real-time video processing and display. The video processing consists of a cascade of consecutive tasks which include image filtering and histogram, feature extraction and counting (for phase fraction measurement), in addition to block-based motion estimation (for flow rate measurement). This constitutes a breakthrough in the field of multiphase flow metering since this task can take full advantage of the mature and advanced techniques achieved in video processing to achieve the most accurate and informative multiphase flow measurement. Extensive experimental tests were successfully carried out on the developed device using various samples with different concentrations of water and air. Hence, an accuracy of 90.2% for the multiphase flow measurement, with a total processing time of 110 ms/frame were achieved. This can be improved even further if a more advanced FPGA featuring high speed clock, in addition to more advanced video processing algorithms are simultaneously used.

Original languageBritish English
Title of host publicationSociety of Petroleum Engineers - Abu Dhabi International Petroleum Exhibition and Conference 2016
ISBN (Electronic)9781510844803
DOIs
StatePublished - 2016
EventAbu Dhabi International Petroleum Exhibition and Conference, ADIPEC 2016 - Abu Dhabi, United Arab Emirates
Duration: 7 Nov 201610 Nov 2016

Publication series

NameSociety of Petroleum Engineers - Abu Dhabi International Petroleum Exhibition and Conference 2016
Volume2016-January

Conference

ConferenceAbu Dhabi International Petroleum Exhibition and Conference, ADIPEC 2016
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi
Period7/11/1610/11/16

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